210 L4-1397cc 1.4L (A14) (1982)
Hose/Line HVAC: Customer Interest
A/C Compressor - Rythmical Throbbing Sound
TS82-006
Jan. 20, 1982
Air Conditioning
CALSONIC AIR CONDITIONER COMPRESSOR MUFFLERS, 1980-81 210
The Calsonic air conditioner compressors in factory air conditioned 1981 210 models have been modified to incorporate an integral muffler in the low
pressure hose. However, 210 models equipped with dealer installed Calsonic air conditioning do not have mufflers. The units may emit a rhythmical
throbbing sound from the compressor under certain load and temperature conditions. Any 1980 or 1981 210 model that exhibits this compressor
pulsation noise can be modified to incorporate an in-line muffler.
Procedure
1.
Connect the manifold gauges to the proper service valves. Slightly open both gauge valves and slowly discharge the refrigerant.
NOTE:
Unless the refrigerant is discharged slowly, compressor oil will be discharged with it. Vent the discharged refrigerant to the shop exhaust
system.
2.
When the refrigerant is completely discharged, disconnect and remove the low pressure refrigerant hose from the low pressure (suction) port of the
compressor and the cooling unit.
3.
Connect the new flex-hose with the in-line muffler between the compressor suction port and the cooling unit. The fitting closest to the muffler is
connected to the compressor.
4.
Evacuate and recharge the system as outlined in the service manual, starting on page HA-16. The correct refrigerant capacity for both models is
28-35 oz. If a significant amount of compressor lubricant is lost while discharging the system, it must be replaced.
Parts Information
Two muffler kits are available. To determine the one required, look at the fitting on the end of the original hose. One is an O-ring type and is made of
aluminum; the other is a flare type and made of copper. The copper fitting is used in the old air conditioning systems.
Name
Part Number
Hose with muffler, O-ring
27682-H8865
Hose with muffler, Flare
99990-00976
Warranty Information
CS
PNC
CT
Operation
Flat Rate
Total
4R
27677
31
BE8350 R/R hose
0.3
BE8450 Recharge
0.9
1.2 hrs.